Tag Archives: invisible ink

TOP HOLIDAY SPY GIFTS

Posted on December 6, 2013 by Agent Double A

The holidays are around the corner, give the gift of spy this season! Just for you, we have declassified our favorite gifts for everyone on your list.   For the Spy Girl 1. Minimergency Kit – Talk about concealment! This kit … Continue reading →

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Spy Book: Invisible Ink

Posted on March 10, 2010 by SpyBlog

SPY’s Book Specialist, Matt Arnold Invisible ink.  Lemon juice, milk, and, for those most desperate, urine are the most commonly known recipes for invisible ink.   These techniques were literally child’s play for many of us.  Yet, when Mata Hari was … Continue reading →

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